LL1681 Lundahl MC input Transformer 1+1:13+13 - nucleo Mu metal

LL1681 Trasformatore step up per testina MC (moving coil)

Rapporto: 1+1 : 13+13

Dimensioni: 48x29x20

- Mu-metal core

- Internal Faraday shield

Moving coil input 1:13 or 1:26 . Mu-metal core. Internal Faraday shield. For low and medium impedance cartridges.

The LL1681 is a large core moving coil input transformer with a mu-metal core.
The LL1681 consists of two coils, each with a two-sectioned primary winding and one high level secondary
winding (with paper insulation) separated by electrostatic shields.
The transformer is magnetically shielded by a mu metal housing.
Turns ratio: 1 + 1 : 13 + 13
Dims (Length x Width x Height above PCB (mm)): 48 x 29 x 20

Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 35.56mm (1.4")
Weight: 90 g
Rec. PCB hole diameter: 1.5 mm

Static resistance of each primary: 4.8W
Static resistance of each secondary: 820W
Distortion
(Transformer connected 1:26, source impedance 40 ohms)
< 0.15% at –10 dBU, 50Hz
(typically 0.1%)
< 1% at +5 dBU, 50Hz
Frequency response, balanced input
(Transformer connected 1:13, source 50Hz, sec. level +10dBU)
7Hz – 70 kHz +/- 1dB
Frequency response, Unbalanced input
(Transformer connected 1:13, source 50Hz, sec. level +10dBU)
7Hz – 40 kHz +/- 1dB
Isolation between primary and secondary windings/ between
windings and shield:
4 kV / 2 kV

Disponibilità dai 7 ai 15 giorni